Detachable saw-tooth.



-A. KRIEGER. DEIACHABLE SAW TOUTE. APPLICATION FILED JUNE 12, 1912.

Patented Dec.24,1912.

ANDREW KREGER, on COLUMBUS, 0H10. 7

DETACHABLE SAW-IOOTH.

Specificanicn 01 Letrs Patent. Patented Dec. 24, 1912.

Application fi1ed lune 12, 1912. Seral No. 703,115.

T0 au whom it may conccm:

Be it lmown that I, ANDREW KRIEGER, a citizen of the United States, residing at Columbus, in the connty of Franklin and State of Ohio, have invented a certain new and useful Improvement in Detachab1e Saw- Teeth, of which the following is a specification.

The objeot of this invention is an im proved means for securing a detachable saw tooth whereby although the tooth. is securely he1d for the purpose of performing its ordinary functicn it ;can be readily removed for repair or substitution When dam aged. n

The invention is embodied in the construction herein shown and described and.then particularly pointed Out in the claims.

In the accompanying drawing&Figure 1 is a side elevation of a fraction of a saw body showing a tooth and means for securing the same therein according to my inventien, the wedge shwn being in front of the tooth. Fig. 2 is a similar elevation of the side opposite that shown in Fig. 1. Fig. 3 is a section on the line m Fig. 1. Fig. 1 is a section on the line yy Fig. 2. Fig. 5 is a side elevation like that shown in Fig. 1 of a modification, the Wedge being shown at the back of the tooth.

In the views and referring more particularly to Figs. 1 t0 4 inclusive 10 designates the saw body which is provided with a recess to receive the tooth and its securing devices, said recess having tongued edges inclined toward each other as they approach the edge of the saw body. 11 designates the tooth which has a shank With grooved parallel edges. The gro0ved edge at the back of the tooth fits upon the tongued side of the recess, as shown in said views so as to leave a tapering space between the forward edge of the tooth and the SaW body to leave a tapering recess for the tapering wedge 12. The wedge 12 is shown as made shorter than the depth of the recess in which it fits so that it can be moved outward to tighten the tooth, or inward to release that member. The base or inner end of the shank of the tooth, at its forward edge and at one side is made with a beveled portion 11" and at its opposite side with a curVed beveled portion 11'. The inner end of the wedge 12 is made with a beveled rearwardly projecting tongue Copies of this patent may be obtained for five cents each, ny addrcssng the Commissi0uer Washingtcn,D. G.

12 chat rests against the beveled portion 11 The beveled portion 11* is made extensive en0ugh longitudinally topermit the wedge to be moved inWa1d or ontWard. 13 dsig-' nates a Sorew threaded into the wedge at a point adapted to have its head bear upon the curved beveled portion 11 of the tooth. Be-

cause said screw is adjuscable it can be 1 turned to cause its head to bear upon any point of the beveled portion 11 opposite to Which it can be moved in the normal adjustment of the wedge for tighcening or seeuring the tooth.

In Fig. 5 the wedge 15 is shown as located at the back of the tooth 16 inscead of at the front and in such case the other features are'-changed according to the princi ples ainply illustrad in Figs. 1 to 4.

In practice the wedge is inserted first but t0 an innerpositi0n so as to make room for the insertion of the shank of the tooth. To look the tooth the wedge is then forced out- Ward until the tooth is tightly held in place and then the screw turned home. T0 remove a tooth these operatiens are carried out in reverse order.

W'hat I daim is:

1. In combination with a recessed saw body, a tooth having a shank construeted t0 engage one edge of said recess, a Wedge t0 engage said shank and the other edgeof: said recess, and a screwin one of said parts adapted to pinch the wedge and tooth laterally togecher. v

2. In combination With a recessed saw body, a tooth having a shank construCted to engage one edge of said recess, a wedge to engage said shank and the other edge of said recess, said wedge, haVing a tongue t0 engage one side of the tooth and a screw having a head t0 engage the opposite side0f the tooth.

3. In combination-with a recessed saW bod, a tooth having a shank constructed t0 engage one edge o-f said recess, said tooth provided with beveled portions at opposite ioo sides, a tdothecuring wedge having a V tongue to engage one of'sa1d beveled por tions and a screw haVing a head to engage the opposite beveled portion of said tooth.

. ANDREW KRIEGER.

Witnesses: BENJAMIN FINCKEL, Omo KEGHLER.

of Patents, 

